Marine Self Closing Valve
Introduction
A marine self-closing valve is a type of valve commonly used in marine applications to control the flow of fluids such as water, oil, or fuel. The valve is designed to automatically close in the event of an emergency, such as a fire or flooding, to prevent the spread of the fluid and minimize damage to the ship or vessel.
The self-closing mechanism of the valve can be activated in different ways, depending on the specific design of the valve. Some valves may rely on mechanical mechanisms, such as springs or weights, to close the valve in case of an emergency. Others may use hydraulic or pneumatic pressure to trigger the valve's closure.
Marine self-closing valves are typically constructed from durable materials such as brass, bronze, or stainless steel, to withstand the harsh marine environment and resist corrosion and erosion. They are commonly used in critical areas of the ship, such as engine rooms, pump rooms, and fuel storage areas, where the risk of fire or flooding is high.
Advantage
1. Safety: The self-closing mechanism of the valve ensures that it closes automatically in case of a sudden pressure drop or a power failure, preventing any potential damage or hazard.
2. Efficiency: The valve ensures efficient flow control, preventing any leakage or backflow, thereby reducing the risk of contamination and ensuring the smooth operation of the system.
3. Durability: Marine self-closing valves are made of high-quality materials that are corrosion-resistant, durable and can withstand harsh marine environments.
4. Maintenance: These valves require minimal maintenance and are easy to clean, reducing downtime and increasing productivity.
5. Cost-effective: The long lifespan and low maintenance requirements of these valves make them a cost-effective solution for marine applications.
6. Compliance: Marine self-closing valves meet international marine standards and regulations, ensuring compliance with safety and environmental requirements.
7. Versatility: These valves can be used in a variety of marine applications such as ballast systems, fuel systems, and firefighting systems.
Configuration Selection
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Part name |
Material |
Advantages / Disadvantages |
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Valve Body |
Bronze |
1. Seawater corrosion resistance; |
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Cast Steel |
1. High mechanical strength and toughness; |
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Cast Iron |
1. Not corrosion resistant; |
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Spool |
Bronze |
1. Strong low temperature resistance; |
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Stainless Steel |
1. It has strong tensile, anti-wear and corrosion resistance, and will not produce corrosion, pitting, corrosion and wear; |
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Valve Stem |
Stainless Steel 304 |
1. Acid and alkali resistance; |
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Stainless Steel 316 |
1. It is more corrosion-resistant and acid resistant than stainless steel 304; |
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Valve Cover |
Bronze |
1. Seawater corrosion resistance; |
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Cast Steel |
1. High mechanical strength and toughness; |
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Handwheel |
Csat Iron |
The price is lower than that of bronze and cast copper |
The differences are as follows
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Product drawings of other low-quality suppliers |
Our factory manufactures products |
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Low quality product features |
Consequence |
Features of our products |
Achieve results |
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1. Insufficient raw materials; |
The wall thickness is uneven, the material distribution is uneven, the valve body is easy to be damaged, and the service life is short |
It is processed in strict accordance with the standard, with uniform wall thickness and material |
The product has high safety factor and long service life |
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1. Made of iron and carbon steel; |
The hardness and accuracy of the valve cannot meet the needs of use, and the shell is easy to crack, resulting in running, emitting, dripping and leakage, and even causing oil and gas pipeline explosion |
Select high-quality materials according to customer needs, and make new products in strict accordance with standards |
The hardness and accuracy of the valve meet the standard quality requirements to ensure the normal operation of the equipment |
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To improve profit margin, purchase cheap unqualified bolts |
Unqualified valve bolts lead to safety hazards, which is easy to cause accidents |
Make new valves in strict accordance with the material requirements of customers, and never substitute inferior products for good ones |
Meet the hardness and accuracy requirements of standard valves, ensure the quality of valves and ensure the normal operation of equipment |
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Flange manufacturing quality is poor, with cracks, pores, insufficient thickness and other problems |
It leads to wear resistance and poor pressure bearing of the valve, and the valve is prone to quality problems, which makes short service life |
Adopt standard bolts with quality assurance in strict accordance with customer requirements |
Improve safety factor and prolong service life |
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In order to reduce the cost, cast iron valve core is used instead of bronze valve core |
Cast iron valve core is easy to be corroded and damaged |
Select standard materials in strict accordance with customer requirements |
The product structure is reasonable and the safety factor is high |
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In order to reduce costs, ordinary round steel valves are used instead of stainless steel valves |
1. The diameter of valve rod fails to meet the requirements; |
1. Made of stainless steel; |
The product has reasonable structure, high safety factor and long service life |
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Drawing |
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① Body: Cast Steel |
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② Seat: Bronze |
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③ Disc: Bronze |
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④ Stem: Brass |
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Parameter performance
Product Showing
Certificates
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